Rapid-Fire Quiz: Katy Perry

The lovely Katy Perry has a little secret about herself -- which she told "Extra's" AJ Calloway in a fun Rapid-Fire Quiz. Watch the video to find out what it is. [Hint: Think Louboutins and little toes.]

Perry loved answering our questions, like "Who has most impressed her in her life?" She emphatically responded, "Gwen Stefani never let me down. I'm a huge fan of her."

See photos of Katy Perry's red carpet fashions!

Best pick-up line? "Nobody ever really picked me up. They would buy me a drink, but I was never that type of girl, and I never went to those types of crowds. Ick."

First time she got paid as an artist? "At a church talent competition -- and I think I won $1,000!"

Perry is set to host the Teen Choice Awards Monday, Aug. 9 on FOX.